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484c6980be
This plugin is now only used by the kpasswd service. Thus, ensuring we only look up the kadmin/changepw principal means we can't be fooled into accepting tickets for other service principals. We make sure not to specify a specific kvno, to ensure that we do not accept RODC-issued tickets. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074 Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz> Reviewed-by: Andreas Schneider <asn@samba.org>
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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KDC Server startup
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-20011
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "kdc/kdc-glue.h"
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#include "lib/param/param.h"
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static krb5_error_code hdb_samba4_create(krb5_context context, struct HDB **db, const char *arg)
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{
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NTSTATUS nt_status;
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void *ptr = NULL;
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struct samba_kdc_base_context *base_ctx = NULL;
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if (sscanf(arg, "&%p", &ptr) != 1) {
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return EINVAL;
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}
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base_ctx = talloc_get_type_abort(ptr, struct samba_kdc_base_context);
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/* The global kdc_mem_ctx and kdc_lp_ctx, Disgusting, ugly hack, but it means one less private hook */
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nt_status = hdb_samba4_kpasswd_create_kdc(base_ctx, context, db);
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if (NT_STATUS_IS_OK(nt_status)) {
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return 0;
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} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ERROR_DS_INCOMPATIBLE_VERSION)) {
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return EINVAL;
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} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_CANT_ACCESS_DOMAIN_INFO)) {
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krb5_set_error_message(context, EINVAL, "Failed to open Samba4 LDB at %s", lpcfg_private_path(base_ctx, base_ctx->lp_ctx, "sam.ldb"));
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} else {
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krb5_set_error_message(context, EINVAL, "Failed to connect to Samba4 DB: %s (%s)", get_friendly_nt_error_msg(nt_status), nt_errstr(nt_status));
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}
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return EINVAL;
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}
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#if (HDB_INTERFACE_VERSION != 11)
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#error "Unsupported Heimdal HDB version"
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#endif
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#if HDB_INTERFACE_VERSION >= 8
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static krb5_error_code hdb_samba4_init(krb5_context context, void **ctx)
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{
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*ctx = NULL;
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return 0;
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}
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static void hdb_samba4_fini(void *ctx)
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{
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}
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#endif
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/* Only used in the hdb-backed keytab code
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* for a keytab of 'samba4&<address>' or samba4, to find
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* kpasswd's key in the main DB
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*
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* The <address> is the string form of a pointer to a talloced struct hdb_samba_context
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*/
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struct hdb_method hdb_samba4_interface = {
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HDB_INTERFACE_VERSION,
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#if HDB_INTERFACE_VERSION >= 8
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.init = hdb_samba4_init,
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.fini = hdb_samba4_fini,
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#endif
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.prefix = "samba4",
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.create = hdb_samba4_create
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};
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